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2 years ago

Plz help me with this asap

Mathematics

2 answers:

never [62]2 years ago

7 0

Answer:

40 $1 bills. 30 $5 bills. 15 $10 bills. 4 $20 bills.

Step-by-step explanation:

In order to find how many there are of each in total, use the multiplication, division, subtraction, and addition property of equality.

For example, take the first equation. 1/2x +7=27

Follow these steps using the equalities

1/2x+7-7=27-7 Subtraction property of equality

1/2x·2=20·2 Multiplication property of equality

x=40

Do the other properties to find all the other equations. Here's the steps you should follow

5=1x-25

5+25=1x-25+25 Addition property of equality

5=x

3x+9=54

3x+9-9=54-9 Subtraction property of equality

3x/3=45/3 Division Property of equality

x=15

16=5x-4

16+4=5x-4+4 Addition Property of Equality

20/5=5x/5 Division Property of Equality

4=x

Hope this helped

kaheart [24]2 years ago

3 0

The first one is x= 40

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balu736 [363]

Answer:

Step-by-step explanation:

We can multiply each equation by a constant so they'll equal either 15 or -15 since that is the LCM.

Since the answer choices want us to make the top a negative 15, we'll do that.

$2x-5y=-21 \\ \\ 3(2x-5y)=(-21)*3 \\ \\ 6x-15y=-63$

To make the y's cancel out, the second equation would have to have the y's coefficient equal 15.

Let's do that.

$3x-3y=-18 \\ \\ -5(3x-3y)=(-18)*-5 \\ \\ -15x+15y=90$

So the resulting equations are answer choice C.

5 0

3 years ago

Drag the phrases into the box to match each expression. 3/4x+1/2 3/4−1/2x 3/4−(x+1/2) 20 pointss!!! i know i must be cra

fomenos

Answer:

$\frac{3}{4}x + \frac{1}{2}$ = One-half more than three-fourths of a number

$\frac{3}{4}-\frac{1}{2}x$ = Three-fourths minus one-half of a number

$\frac{3}{4}-(x+\frac{1}{2})$ = three-fourths minus the sum of a number and one-half

Step-by-step explanation:

Suppose x be an unknown number.

∵ 3/4th of a number = $\frac{3}{4}x$

$\frac{3}{4}x + \frac{1}{2}$ = One-half more than three-fourths of a number

Now, half of a number = $\frac{1}{2}x$

$\frac{3}{4}-\frac{1}{2}x$ = Three-fourths minus one-half of a number

Sum of a number and one-half = $x+\frac{1}{2}$

$\frac{3}{4}-(x+\frac{1}{2})$ = three-fourths minus the sum of a number and one-half

6 0

3 years ago

In triangle UVW, the measure of angle W=90°, the measure of angle U=15°, and VW=81 feet, Find the length of WU to the nearest te

Hatshy [7]

Answer:

302.3

Step-by-step explanation:

4 0

3 years ago

cert 22.2 U To 3. Draw an area diagram to find (0.36) (0.53). Label and organize your work so that it can be followed by others.

Masteriza [31]

The result of the product of (0.36) and (0.53) is 0.1908

<h3>How to determine the product</h3>

The product expression is given as:

(0.36) * (0.53)

Rewrite the product as follows:

$(0.36) * (0.53) = (0.3 + 0.06) * (0.5 + 0.03)$

Expand the product

$(0.36) * (0.53) = 0.3 * (0.5 + 0.03)+ 0.06 * (0.5 + 0.03)$

Expand

$(0.36) * (0.53) = 0.15 + 0.009+ 0.03+ 0.0018$

Evaluate the sum

$(0.36) * (0.53) = 0.1908$

See attachment for the area diagram of the product

Plz help me with this asap​

Plz help me with this asap